Features: Hydrophobic Meshes and Lining Offer Breathability and Water Compatibility Lightweight PU Midsole for Superior Under-Foot Comfort Removable Full-Length EVA Footbed with Anti-Microbial Treatment Increases Comfort and Reduces Odor Hydro-Grip™ Rubber Outsole Compound for Outstanding Traction Non-Marking Rubber Outsole with Quadro-Grip Multi-Directional Wave-Siping™ for Added Wet / Dry Traction Sperry recommends ordering this shoe a half size smaller than your normal shoe size.